Dalamud/Dalamud/Interface/Internal/Windows/CreditsWindow.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;

using Dalamud.Game;
using Dalamud.Game.Gui;
using Dalamud.Interface.Windowing;
using Dalamud.Plugin.Internal;
using ImGuiNET;
using ImGuiScene;

namespace Dalamud.Interface.Internal.Windows
{
    /// <summary>
    /// A window documenting contributors to the project.
    /// </summary>
    internal class CreditsWindow : Window, IDisposable
    {
        private const float CreditFPS = 60.0f;
        private const string CreditsTextTempl = @"
Dalamud
A FFXIV Plugin Framework
Version D{0}


created by:

goat
Mino
Meli
attick
Aida-Enna
perchbird
Wintermute
fmauNeko
Caraxi
Adam
nibs/Poliwrath
karashiiro
Pohky
daemitus
Aireil
kalilistic
MgAl2O4
ascclemens



Localization by:

Aireil
Akira
area402
Ridge
availuzje
CBMaca
Delaene
fang2hou
Miu
fmauNeko
qtBxi
JasonLucas
karashiiro
hibiya
sayumizumi
N30N014
Neocrow
OhagiYamada
xDarkOne
Truci
Roy
xenris
Xorus



Logo by:

gucciBane



Your plugins were made by:

{1}


Special thanks:

Adam
karashiiro
Kubera
Truci
Haplo
Franz
aers


We use these awesome C# libraries:

Lumina by Adam
FFXIVClientStructs by aers

DotNetCorePlugins
Copyright (c) Nate McMaster 
Licensed under the Apache License, Version 2.0
See License.txt for license information.

Thanks to everyone in the XIVLauncher
Discord server

Join us at: https://discord.gg/3NMcUV5



Dalamud is licensed under AGPL v3 or later
Contribute at: https://github.com/goatsoft/Dalamud


Thank you for using XIVLauncher and Dalamud!
";

        private readonly TextureWrap logoTexture;
        private readonly Stopwatch creditsThrottler;

        private string creditsText;

        /// <summary>
        /// Initializes a new instance of the <see cref="CreditsWindow"/> class.
        /// </summary>
        public CreditsWindow()
            : base("Dalamud Credits", ImGuiWindowFlags.NoCollapse | ImGuiWindowFlags.NoResize, true)
        {
            var dalamud = Service<Dalamud>.Get();
            var interfaceManager = Service<InterfaceManager>.Get();

            this.logoTexture = interfaceManager.LoadImage(Path.Combine(dalamud.AssetDirectory.FullName, "UIRes", "logo.png"));
            this.creditsThrottler = new();

            this.Size = new Vector2(500, 400);
            this.SizeCondition = ImGuiCond.Always;

            this.PositionCondition = ImGuiCond.Always;

            this.BgAlpha = 0.8f;
        }

        /// <inheritdoc/>
        public override void OnOpen()
        {
            var pluginCredits = Service<PluginManager>.Get().InstalledPlugins
                .Where(plugin => plugin.Manifest != null)
                .Select(plugin => $"{plugin.Manifest.Name} by {plugin.Manifest.Author}\n")
                .Aggregate(string.Empty, (current, next) => $"{current}{next}");

            this.creditsText = string.Format(CreditsTextTempl, typeof(Dalamud).Assembly.GetName().Version, pluginCredits);

            Service<GameGui>.Get().SetBgm(132);
            this.creditsThrottler.Restart();
        }

        /// <inheritdoc/>
        public override void OnClose()
        {
            this.creditsThrottler.Reset();
            Service<GameGui>.Get().SetBgm(9999);
        }

        /// <inheritdoc/>
        public override void PreDraw()
        {
            ImGui.PushStyleVar(ImGuiStyleVar.WindowPadding, new Vector2(0, 0));

            base.PreDraw();
        }

        /// <inheritdoc/>
        public override void PostDraw()
        {
            ImGui.PopStyleVar();

            base.PostDraw();
        }

        /// <inheritdoc/>
        public override void Draw()
        {
            var screenSize = ImGui.GetMainViewport().Size;
            var windowSize = ImGui.GetWindowSize();

            this.Position = (screenSize - windowSize) / 2;

            ImGui.BeginChild("scrolling", Vector2.Zero, false, ImGuiWindowFlags.NoScrollbar);

            ImGui.PushStyleVar(ImGuiStyleVar.ItemSpacing, Vector2.Zero);

            ImGuiHelpers.ScaledDummy(0, 340f);
            ImGui.Text(string.Empty);

            ImGui.SameLine(150f);
            ImGui.Image(this.logoTexture.ImGuiHandle, ImGuiHelpers.ScaledVector2(190f, 190f));

            ImGuiHelpers.ScaledDummy(0, 20f);

            var windowX = ImGui.GetWindowSize().X;

            foreach (var creditsLine in this.creditsText.Split(new[] { "\r\n", "\r", "\n" }, StringSplitOptions.None))
            {
                var lineLenX = ImGui.CalcTextSize(creditsLine).X;

                ImGui.Dummy(new Vector2((windowX / 2) - (lineLenX / 2), 0f));
                ImGui.SameLine();
                ImGui.TextUnformatted(creditsLine);
            }

            ImGui.PopStyleVar();

            if (this.creditsThrottler.Elapsed.TotalMilliseconds > (1000.0f / CreditFPS))
            {
                var curY = ImGui.GetScrollY();
                var maxY = ImGui.GetScrollMaxY();

                if (curY < maxY - 1)
                {
                    ImGui.SetScrollY(curY + 1);
                }
            }

            ImGui.EndChild();
        }

        /// <summary>
        /// Disposes of managed and unmanaged resources.
        /// </summary>
        public void Dispose()
        {
            this.logoTexture?.Dispose();
        }
    }
}